G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 5/12 (2006.01) E21B 49/00 (2006.01) H05G 1/32 (2006.01)
Patent
CA 2739599
An apparatus and method for determining the density and other properties of a formation surrounding a borehole using a high voltage x-ray generator. One embodiment comprises a stable compact x-ray generator capable of providing radiation with energy of 250keV and higher while operating at temperatures equal to or greater than 125°C. In another embodiment, radiation is passed from an x-ray generator into the formation; reflected radiation is detected by a short spaced radiation detector and a long spaced radiation detector. The output of these detectors is then used to determine the density of the formation. In one embodiment, a reference radiation detector monitors a filtered radiation signal. The output of this detector is used to control at least one of the acceleration voltage and beam current of the x-ray generator.
Becker Arthur J.
Groves Joel L.
Stoller Christian
Wraight Peter
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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